Shock absorber for automobile springs



P. W. JOHNSON SHOCK ABSORBER FOP-( AUTOMOBILE SPRINGS Filed March 23. 1922 INVENTOR.

Patented Aug, 21, 1923. l i 1i rs resin.

PAUL w. JOHNSON, or tracer-Ia, wasnrueron.

SHOCK essonsnri non .a'uroraosrnr. 'srzenves. Application filed March z 1922.; Serial No. 545,930.

To allwbomz'tmay concerni 7 to resist the lateral strain imparted to Be it known'that I, PAUL VJ. J OHNSON, a the spring 6. Upturned extensions 99 on citizen of the United States, resident of the the sides atthe end of spring 6 provide a city of Tacoma, in the county of Pierce and sea-t whereby the ame is fixed on the spring State of Vi/ ashington, have made a new and 3 by means of the U-bolt 10. This U-bolt is so useful Improvement in Shock Absorbers for set suitably tight and yet loose enough to .Automobile Springs, of which the follow permit the leaves of the spring 3 to act ing is a specification. freely.

My invention relates to shock absorber. The body part of the cantilever attachio attachments to the springs of automobiles ment 5 has side extensions bent downward a5 and other motor driven vehicles. The obat right angles therewith and to which the jects of my invention are to add elasticity spring hangers i are hung at 11. The end to the automobile springs and thus help abof the cantilever is mounted on the perch sorb the shock that results from a vertical 2 at 12, the perch 2 being set to lean opjar or jolt, and also to resist the sudden positely to its usual position as previously 70 swaying of the car to one side from a like mentioned. cause. It is to be observed that the cantilever at- I attain these objects by the device illustachment is cut or stamped from one piece trated in the accompanying drawing, the inof spring steel properly formed and temzo vention being shown in one view, the several pered to resist the strain imposed. It is 75 parts being described by referring to the designed to be made the width of the spring characters by which the same are indicated. to which it is to be attached and shaped to In the drawing the axle of an automobile fit any make of automobile. is represented at l-l, on which is shown When in use it will be seen that as the an up-standing post orperch 2 from which axle lis suddenly raised by the wheels strikso one end of an automobile spring 3 is susing an obstruction, my invention will give pended. The opposite end of the spring 3 added elasticity to the spring 3 by the rockis suspended in the same manner. The post ing action of the cantilever attachment 5 2 is shown leaning in the opposite direction and its horse-shoe shaped spring extension 6. from its position when the shock absorber The terminal claw 8 acting against the end 5 is omitted and the spring 3 is suspended di of the spring leaf 7 will cause the spring 6 rectly from it by meansof the spring hang to materially absorb any lateral motion ers 4:. Without a shock absorber all the aused by turning a curve or by one wheel elastic strain is put directly on the spring striking a greater obstruction than the 3 which does not suiiicientlyabsorb the other. 90 shock from the wheels. Vertical and lateral My invention being made of one piece strains from this shock is often imparted of spring metal has the advantage of being that are injurious to the springs and to the a simple article of manufacture. It is easy automobile, besides causing uneasiness tothe to attach to the automobile springs and canpassengers. V not get out of position by the most extreme e5 rior to my invention various kinds of use. shock absorbers have been usedto lessen the Having described my invention, I claim strains and prevent the uneasiness men- 1.. A shock absorber for automobiles, comtioned. My invention is designed to obtain prising a unitary cantilever attachment, one the objects desired more effectively, and end of said attachment being mounted on with a more simply constructed attachment the outwardly turned perch of the autoto the springs than has been heretofore used.- mobile axle, the opposite end of said at- My invention comprises a one-piece cantitachment being extended to form a horse lever attachment 5 fixed on the end of the shoe shaped spring, means for attaching the tic-spring 3. The attachment is extended to end of'said horse shoe shaped spring on the form semi-circular or horse-shoe shaped leaves of the automobile spring near its end, spring 6, the extreme end of which is atthe spring hangers of said automobile spring tached at the end of a leaf 7 on the spring pivotally suspended from the said cantilever 3. The spring 6 terminates with a right attachment, and the end of said horse shoe angled claw-end 8 to engage the end of leaf shaped spring terminated with a downwardly turned claw to engage the end of the spring; Leaf on which it rest-site resist thelateral strain imparted thereto. p i

2. A shock absorber for automobiles, comprising aunitary cantilever attachment rigidly formed with downwardly turned sides and with a horse shoe shaped spring extension on one end thereof, means for mounting the rigid end on the outwardly turned perch o'f'the automobile axle and time. 7

means for fixingthe said h'oi-seshoe shaped spring ,end on the lesvesoi" the sutom-oi ile spring, .the we. of the said automobile spring suspended from theseid cantilever attachment between .itsbearingsnnd said cantilever attachment with its horse shoe shaped extension :inede WhQiIy: of one piece of spring metalfesen article Off 1nsnufac- 7 PAUL W. JoHNsoN; 

